Generating electricity by walking or running on piezoelectric materials and that energy get stored in batteries and that can be used for street lights.It is non-conventional power generation system , eco-friendly and no pollution. It can implement easily and low budget project also.As we know our natural resources are vanishing and we need another ways to produce electricity and this is most eco-friendly and cheap.Japan and China has worked on this project

1. POWER GENERATION BY
USING PIEZOELECTRIC
EFFECT
SUBMITTED BY: HARI KRISHNA PRATEEK RAJPUROHIT GUIDED BY:
PARMOD KUMAR SACHIN PRATAP MR.K.S SRIKANTH
GAUTAM VERMA

2. CONTENT:
• Introduction
• Piezoelectric material
• Piezoelectric effect
• Working
• Principle
• Block diagram
• Footstep arrangement
• Battery
• Diode
• Advantage
• Disadvantage
• Application
• Conclusion
• References

3. INTRODUCTION
• We are generating electrical power nonconventional method by simply
walking or running on the foot step
• Non conventional energy using foot step is converting mechanical energy
in to the electrical energy
• The basic principle behind this system is piezoelectric effect
• It is based on generating micro energy from vibration and which can
generate mW or uW

4. PIEZOELECTRIC MATERIALS
• certain materials have the ability to build up an electrical charge from having pressure and
strain applied to them. Piezoelectricity refers to the ability of some materials to generate an
electric potential in response to applied pressure such materials are called piezoelectric material
• Eg:
Quartz
Belemnite
Gallium orthophosphate
Tourmaline
Lead zirconate titanate crystals

5. PIEZOELECTRIC EFFECT
• Piezoelectric Effect is the ability of certain materials to generate an
electric charge in response to applied mechanical stress. It is a linear
Electromechanical interaction between mechanical and electrical state in
crystalline materials with no inversion geometry. This effect is a reversible
process and thus also produce internal mechanical stress resulting from an
Applied electric field.

6. WORKING
• The piezoelectric material converts the pressure applied to it into electrical energy.
• The source of pressure can be either from the weight of the moving vehicles or from
the weight of the people walking over it.
• The output of the piezoelectric material is not a steady one. So a bridge circuit is used
to convert this variable voltage into a linear one.
• Again an AC ripple filter is used to filter out any further fluctuations in the output.
• The output dc voltage is then stored in a rechargeable battery.
• That stored energy can be used for street lights.

7. • A force is applied along a neutral axis of
the piezoelectric crystal and the charges
are generated along the perpendicular to
the line of force
• The amount of charge depends up on
the
1. Geometrical dimensions of the respective
piezoelectric element
2. pressure applied

9. BLOCK DIAGRAM
Footstep
arrangement
Piezoelectric
transducers
array
Unidirectional
current
controller
AC ripple
filter
Rechargeable
batteryload

10. FOOTSTEP ARRANGEMENT

11. BATTERY
• Lead- Acid Battery -9V
• High quality and reliability
• Long life
• Maintenance free
• Used to store energy and can be used
over a day

12. DIODE
• Two terminal electronic component that conducts current in primarily one
direction.
• It has low resistance in one direction and high resistance in another direction.
• Mainly semiconductor diode being used today having p-n junction.
• Unidirectional behavior called rectification, and is used to convert ac to dc.
• It has non-linear current-voltage characteristics due to which it is also used as
voltage reference.

13. ADVANTAGES
• Non conventional method, renewable energy source
• Eco friendly
• Reliable
• Self generating – no external power required
• Less maintenance cost
• Ultra low noise
• An alternative way of power generation

14. DISADVANTAGES
• Initial cost is too high
• Implementation is difficult
• Less maintenance , but difficult

15. APPLICATION
• 1 Footstep power generation can be used in emergency power failure situations
• It can be used for Agricultural ,Home applications , Street lighting and etc…
• Metros and Rural applications
• Used for detection of sound, microbalances and electronic frequency generation
• Ultra fine-focusing of optical assemblies
• Everyday uses of these materials such as ignition of cigarette lighter and gas-
stove lighter

16. CONCLUSION
• Footstep power generation system is economical, affordable energy solution to
common people
• It can be used for many application in rural areas where power availability is less
• Durable
• less or totally absence
• Produce 2000 watts of electricity.
• Have a life of approx. 5 years.

17. REFERENCES
• www.google.com
• www.wikipedia.com
• www.ieee.com
• www.slideshare.com
• www.powershow.com
• www.pptplanet.com